Topcon KR-800A - Specifications and Performance

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SPECIFICATIONS AND PERFORMANCE
SPECIFICATIONS AND PERFORMANCE
SPECIFICATIONS AND PERFORMANCE
Range of Refractometry
Measurement
Range of Cornea
Curvature Measurement
Spherical refractive power: -25 to +22D (0.12D/0.25D steps)
Cylindrical refractive power: 0D to 10D (0.12D/0.25D steps)
Direction of astigmatic axis: 0° to 180° (1°/5° steps)
(where, spherical refractive power + cylindrical refractive power +22D, or
spherical refractive power + cylindrical refractive power -25D)
Measured minimum pupil diameter: 2mm
Cornea curvature radius: 5.00mm to 10.00mm (0.01mm display unit)
Corneal refractive power: 67.50D to 33.75D(0.12D/0.25D steps)
(where, corneal refractive power =1.3375)
Corneal astigmatic power: 0D to 10D (0.12D/0.25D steps)
Direction of corneal astigmatic axis: 0 to 180° (1°/5° steps)
PD measurement 20-85mm (0.5mm display unit)
External I/O terminal USB(for Import), RS-232C(for Export), LAN(for Export)
NOTE
Essential performance
• Measurement must be performed correctly.
• Monitor screen display must not be distorted.